{"product_id":"btr-small-bore-head-gaskets-3940-bore-055-thickness","title":"BTR Small Bore Head Gaskets - 3.940\" Bore - .055\" Thickness","description":"\u003cp\u003eBTR SMALL BORE 7 LAYER HEAD GASKETS - 3.940\" BORE - .055\" THICKNESS - SOLD IN PAIRS - BTR973010-2 These small bore, seven layer MLS head gaskets from BTR utilize the same sealing technology found in the ever popular LS9 gasket. This is the perfect choice If you have a 4.8 or 5.3 LS and want to turn the boost all the way up! Install tab towards front \u0026amp; added coolant passages to the rear WILL NOT WORK WITH A TRICK FLOW FAST AS CAST LS1 HEA\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":52079731736870,"sku":"BTR973010-2","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/btr-058420-2-pair_6b8dfdc5-5e61-4e12-8ab2-a16a69f07b08.jpg?v=1770811487","url":"https:\/\/billysspeedshop.com\/fr\/products\/btr-small-bore-head-gaskets-3940-bore-055-thickness","provider":"Billys Speed Shop","version":"1.0","type":"link"}